////////////////////////////////////////////////////////////////////////////////////////////////////
// Copyright (c) 2009, Daniel Kollmann
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without modification, are permitted
// provided that the following conditions are met:
//
// - Redistributions of source code must retain the above copyright notice, this list of conditions
//   and the following disclaimer.
//
// - Redistributions in binary form must reproduce the above copyright notice, this list of
//   conditions and the following disclaimer in the documentation and/or other materials provided
//   with the distribution.
//
// - Neither the name of Daniel Kollmann nor the names of its contributors may be used to endorse
//   or promote products derived from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
// FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
// WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY
// WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
////////////////////////////////////////////////////////////////////////////////////////////////////

using System;
using System.Collections.Generic;
using System.Text;
using Brainiac.Test.Nodes;
using Microsoft.VisualStudio.TestTools.UnitTesting;

namespace Brainiac.Test
{
	[TestClass]
	public class TestExtractNode
	{
		[TestMethod]
		public void ExtractMultipleChildrenValid()
		{
			MultipleChildren root= new MultipleChildren();

			MultipleChildren extractMe= new MultipleChildren();
			root.AddChild(extractMe);

			SingleChild child1= new SingleChild();
			SingleChild child2= new SingleChild();
			extractMe.AddChild(child1);
			extractMe.AddChild(child2);

			Assert.IsTrue(extractMe.ExtractNode(), "Could not extract node");
			Assert.IsTrue(extractMe.Parent ==null, "Parent was not cleared");
			Assert.IsTrue(extractMe.ParentConnector ==null, "Parent connector was not cleared");
			Assert.IsTrue(child1.Parent ==root, "Parent was not updated on children");
			Assert.IsTrue(child1.ParentConnector ==root.DefaultConnector, "Parent connector was not updated on children");
			Assert.IsTrue(child2.Parent ==root, "Parent was not updated on children");
			Assert.IsTrue(child2.ParentConnector ==root.DefaultConnector, "Parent connector was not updated on children");
		}

		[TestMethod]
		public void ExtractMultipleChildrenInvalid()
		{
			SingleChild root= new SingleChild();

			MultipleChildren extractMe= new MultipleChildren();
			root.AddChild(extractMe);

			SingleChild child1= new SingleChild();
			SingleChild child2= new SingleChild();
			extractMe.AddChild(child1);
			extractMe.AddChild(child2);

			Assert.IsTrue(!extractMe.ExtractNode(), "Node was extracted although not allowed");
			Assert.IsTrue(extractMe.Parent ==root, "Parent was modified");
			Assert.IsTrue(extractMe.ParentConnector ==root.DefaultConnector, "Parent connector was modified");
			Assert.IsTrue(child1.Parent ==extractMe, "Parent was modified on children");
			Assert.IsTrue(child1.ParentConnector ==extractMe.DefaultConnector, "Parent connector modified on children");
			Assert.IsTrue(child2.Parent ==extractMe, "Parent was modified on children");
			Assert.IsTrue(child2.ParentConnector ==extractMe.DefaultConnector, "Parent connector was modified on children");
		}
	}
}
